What is CVE-2020-25875?

CVE-2020-25875 is a medium-severity vulnerability in Codologic Codoforum, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-09.

How severe is CVE-2020-25875?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2020-25875 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Codologic Codoforum

CVE-2020-25875

A stored cross site scripting (XSS) vulnerability in the 'Smileys' feature of Codoforum v5.0.2 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payload entered into the 'Smiley Code' parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Codologic Codoforum — versions 5.0.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

codoforum.com/ (Product)
github.com/r0ck3t1973/xss_payload/issues/4 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-25875?: CVE-2020-25875 is a medium-severity vulnerability in Codologic Codoforum, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-09.
How severe is CVE-2020-25875?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2020-25875 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.